JS Developer

- EN The Netherlands Questions about working at Coolblue? Contact our recruiters via Follow Coolblue: © 1999 - 2026 - Coolblue B.V. Rotterdam, Weena 664 1 - 40 hours Higher Professional Education As a Front-End React/Next.js Developer, you will help improve the user experience of our web applications at Coolblue, while being comfortable working across the full stack when needed. This role is primarily front-end focused, with hands-on full-stack expectations including back-end development in TypeScript and C#. You enjoy doing this - Developing and implementing performant, user-friendly applications using React.js and Next.js. - Reviewing application requirements and interface designs, and identifying web-based user interactions. - Contributing to back-end logic such as APIs and server-side functionality using technologies like Node.js or C# when needed. - Making technical decisions, including about architecture, tools, and processes, with a full-stack perspective. - Collaborating with team members from various backgrounds and nationalities. - Working with GitHub and writing automated tests to ensure high-quality software. - Working in a fast-paced Continuous Integration & Deployment environment. You recognize yourself in the following - You have 3+ years of experience as a Front-End React/Next.js Developer. - You have a BSc or MSc in Computer Science or comparable. - At least 1 to 3 years of hands-on experience with TypeScript. - You have in-depth knowledge of TypeScript and React.js/Next.js concepts. - You have experience with modern JavaScript (ES2017+), HTML, and CSS/SCSS. - You have experience with a Back-End runtime environment such as Node.js or C# (.NET). - Working with Scrum/Agile is second nature to you. - You are fluent in English. - You live in The Netherlands. This is what you're looking for in a job - Money. - Working together in an international environment with colleagues from the Netherlands, Belgi...